Lt Week 4 Ppt

Topics: Volcano, Earth, Geology Pages: 3 (934 words) Published: August 26, 2013
How do you think the principle of uniformitarianism accounts for occasional catastrophic events such as meteorite impacts, huge volcanic eruptions, or great earthquakes? Because uniformitarianism shows us that if our earths plates are moving today, they were moving in the past. This moving of the plates causing things such as earthquakes. In what ways do geologic processes affect your daily life? Geology is the study of earth, which is where we live. Understanding geology and how it works, helps us understand how it affects us. We use up earths resources such as oil, coal, and minerals. Geology helps us understand volcanoes and earthquakes. We are able to track volcanoes and tectonic plates and be able to better predict disasters helping us to be better prepared. When astronauts brought back rock samples from the Moon, the minerals present were mostly the same as those found on Earth. Can you think of reasons why this might be so? Would you expect minerals on Mars or Venus to be the same, or at least very similar, to those on Earth? One reason why the minerals would be the same is because if you follow the big bang theory you would know that we all ultimately came from the same big material, So there would ultimately be some of the same minerals. From this reasoning, I would believe mars and venus to have the same minerals as earth also. Which of the following materials are minerals, and why (or why not)? Water; beach sand; diamond; wood; vitamin pill; gold nugget; fishbone; emerald. Water is an element, not a mineral. Beach sand is a mineral, because it is ultimately pulverized rocks, which are also minerals. Diamonds are minerals, they are compacted carbon. Wood is not a mineral, it is from a tree which is not a mineral. Vitamin pills are packed full of minerals that are good for our bodies (for the most part). Gold nuggets are minerals, just as diamonds are. They are rare and made by the earth. Fishbones are not minerals, maybe over time after earth has done...

References: Zerr, M.; n.d.; Big Sioux River; Retrieved from http://www.leifericson.org/zerrphotos/id17.html
n.a.; North American Tapestry; Retrieved from http://nationalatlas.gov/articles/geology/legend/ages/jurassic.html
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